The ability to be still is actually an advanced skill requiring a certain degree of brain maturity. Usually the reason a child cannot be still is due to a lack of brain maturity. Neurodevelopmental Movement provides the proper kinds of movement to develop maturity in the basal ganglia of the brain, which is responsible for the ability to be still. We intuitively understand that a healthy toddler will be in near constant motion while awake, but we expect an older child to sit still. Even though a child may seem old enough to be still in fact the brain requires further maturation before being still is comfortable or even possible.